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Amiraneli [1.4K]
2 years ago
14

Midterm Part 1

Mathematics
1 answer:
ArbitrLikvidat [17]2 years ago
4 0

Answer:

Step-by-step explanation: ok

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Let X denote the time from the present until the stock market hits 25,000. If X ≤ 1, you win $10, 000X. If X > 1, you win not
const2013 [10]

Answer: $6321

Step-by-step explanation:

Expected value is given as exactly what you might think it means intuitively, the return you can expect for some type of action.

The basic expected value formula is the probability of an event multiplied by the amount of times the event happens:(P(x) * n).

he formula for the Expected Value for a binomial random variable is:

P(x) * X.

X is the number of trials and P(x) is the probability of success.

The formula for calculating the Expected Value where there are multiple probabilities is:

E(X) = ∑X * P(X)

The equation is basically the same, but here you are adding the sum of all the gains multiplied by their individual probabilities instead of just one probability.

Calculating the expected value of winning as follows:

Given,

Fx= e^-x, x is greater or equal to 0

Now, P less than or equal to zero =

[-e^-x] ^1

e^-0 - e^-1

= 1 - e^-1

= 0.6321

and P(x>1) = 1-0.6321= 0.3679

Therefore,Let y= amount of winnings.

Based on the above given information,

y= $10000 0

P(y)= 0.6321 0.3679

The expected value of winning:

E(y) = ΣyP(y)

E(y) = 10000 × 0.6321 + 0 × 0.3679

E(y) = $6321

Therefore, the expected value of winning is $6321

5 0
3 years ago
WHATS IS -5x 2/7= I NEED HELP PLEASE
Kipish [7]

-5x 2/7 =

−10x/7

srry if it is wrong man but that is what i got

4 0
3 years ago
Does 17/3 = 68/12???
dimulka [17.4K]

Answer:

17/3 = 68/12

Step-by-step explanation:

17/3 =? 68/12

Get a common denominator of 12

17/3 * 4/4

68/12

They are equal so this is true

4 0
3 years ago
Read 2 more answers
How many different situations arise when five coins are thrown into the air?
svet-max [94.6K]
Each coin will either land as a head or a tail.  - 2 possible results.
for 5 coins its 2*2*2*2*2 = 32 different results.
4 0
3 years ago
What is the product for 3-7x​
Arlecino [84]

Answer:

=3/7 × -2/5

=-6 / 35

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
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